two-way detector array

例句：

1. 1.The two-way detector array is used to detect the presence of people in a room.
   双向探测器阵列用于检测房间内人员的存在。
2. 2.The two-way detector array was developed to improve security at airports.
   双向探测器阵列被开发出来以改善机场的安全。
3. 3.The two-way detector array can be used to monitor traffic flow and prevent accidents.
   双向探测器阵列可以用来监控交通流量，防止事故。